miim

### MP-111 Host to MP communication error

The MP detected an error during data transmission from the host computer. If the host-to-MP communication link is RS-232, possible errors are:

- Overrun error

- Parity error

- Framing error

- The overflow of the 256-byte input buffer

The most probable causes of the first three errors are incompatibilities between the MP and the host in baud rate, character length, parity selection and checking, or a number of stop bits.

What you should do:

1. To clear the error, power the MP down.

2. On an MP-30, make sure the RS-232 switch settings on the MP control board and quad serial board are correct.

3. On an SMP-400, make sure that the host RS-232 settings agree with the SMP-400 internal switch settings.

4. Power the MP back up.

5. If the error reoccurs, contact your Giddings & Lewis service representative.